Effects of partial substitution of alfalfa hay with green tea waste on growth performance and in vitro methane emission of fat-tailed lambs

Nasehi, Mohammad; Torbatinejad, N.; Rezaie, Mitra; Ghoorchi, T.

doi:10.1016/j.smallrumres.2018.09.006

Cited by 21 publications

(13 citation statements)

References 57 publications

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“…However, in our study, a negative effect of HM on DM digestibility was observed. Similar results were previously reported by Nasri et al [43] in lambs supplemented with saponin extracts from Quillaja saponaria at dietary concentrations of 30, 60 and 90 mg kg −1 DM; and by Nasehi et al [21] in lambs supplemented with increasing doses (0, 6.1, 8.7 and 11.3 g kg −1 DM) of saponins from the green tea plant (Camellia sinensis). Their results showed that saponins reduced the digestibility of DM of the lambs but did not affect their productive performance.…”

Section: Discussionsupporting

confidence: 89%

“…The botanical origin, the dose, and the composition of the diet used can influence the biological response that saponins have on ruminants [20]. Although, the effects of using saponins in ruminant feed have been investigated in animals fed diets containing a high proportion of forage [11,13]; information on the effects of these bioactive metabolites in ruminants fed high concentrate diet is limited and inconsistent [19,21]. Some saponin extracts improve ruminal fermentation and increase the efficiency of energy use in the animals, which could result in better productive performance [11].…”

Section: Introductionmentioning

confidence: 99%

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Productive Performance, Carcass Traits, and Meat Quality in Finishing Lambs Supplemented with a Polyherbal Mixture

et al. 2021

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The objective of this study was to evaluate the effects of dietary supplementation of a polyherbal mixture (HM) containing saponins, flavonoids, and polysaccharides on productive performance, carcass characteristics and meat quality of lambs during the final fattening period. Thirty-six Dorper × Katahdin lambs (23.27 ± 1.23 kg body weight (BW)) were housed in individual pens and were assigned to four treatments (n = 9) with different doses of HM: 0 (CON), 1 (HM1), 2 (HM2) and 3 (HM3) g of HM kg−1 of DM for 56 days. Data were analysed as a completely randomized design using the MIXED and GLM procedures of statistical analysis system (SAS), and linear and quadratic effects were tested to evaluate the effects of the HM level. DM digestibility decreased in lambs fed HM3 (p < 0.05). There was no effect of HM on daily weight gain, dry matter intake, final BW, feed conversion, carcass characteristics, colour (L* and a*) and meat chemical composition. Meat pH, cooking loss and drip loss increased linearly (p < 0.05) when the HM dose was increased. The Warner-Bratzler shear force (WBSF) of meat was lower (p < 0.05) in lambs fed HM3. In conclusion, dietary inclusion of 3 g HM kg1 of DM improves meat tenderness. However, high doses of HM in the diet may decrease the digestibility of DM and increase the cooking loss and drip loss of lamb meat during the final fattening period.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Productive Performance, Carcass Traits, and Meat Quality in Finishing Lambs Supplemented with a Polyherbal Mixture

et al. 2021

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“…Ramdani et al [10] reported that GTL contained about 20.4% tannins, and the majority of its tannins were catechin derivatives [10]. Nasehi et al [16] reported that green tea waste from tea drying factories had 16.3% CP and 12.2% tannins, which is considerably high for a waste product. Although GTD had lower CP (20.1 vs. 24.0%), it had slightly greater tannin (23.0 vs. 20.4%) content compared with GTL in the study of Ramdani et al [10].…”

Section: Discussionmentioning

confidence: 99%

The effect of paddy straw and concentrate containing green tea dust on performance and nutrient digestibility in feedlot lambs

Ramdani¹,

Budinuryanto²,

Mayasari³

2020

Turk J Vet Anim Sci

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The utilization of low-input paddy straw hay (PSH) for fattening lambs should be incorporated with a high-quality concentrate (HQC) in which green tea dust (GTD) rich in tannins can be added as a natural feed additive. Completely randomized design was used to compare 5 doses of GTD inclusions (dry matter, DM basis) at 0% (GTD-0), 0.5% (GTD-0.5), 1% (GTD-1), 1.5% (GTD-1.5), and 2% (GTD-2) in an HQC as the main diet of PSH-fed fattening lambs on average daily gain (ADG, g/head/day), dry matter intake (DMI, g/head/day), and nutrient digestibility (%) using 6 replicates. The results showed that GTD-1.5 resulted in higher (P < 0.05) ADG for the lambs compared with GTD-0 as a control diet during 69 days of a feeding trial, while GTD-0.5, GTD-1, and GTD-2 provided a nonsignificant increase in ADG for the lambs in comparison with GTD-0. There was no difference (P > 0.05) in nutrient digestibility of the lambs for all GTD treatments, but GTD-1.5 resulted in better nutrient digestibility. Proper GTD inclusion in an HQC and PSHbased diet can therefore increase the performance of fattening lambs without any harmful effects on feed consumption and nutrient digestibility. GTD inclusion in an HQC as the main diet of feedlot lambs is recommended at 1.5%.

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“…This renewable biomass resource puts great pressure on the environment and also waste bioactive components in tea, including many nutrients that are present in TDs. The main nutrients in dry TDs include crude protein (16.3−35.65%), ether extract (1−7.4%), and minerals [7,8]. In addition, TDs are rich in functional substances, such as polyphenols, alkaloids, saponins, and amino acids [9,10], which have biological activities, such as antioxidant, immunoregulatory, anti-obesity, and anti-diabetic activities [10,11].…”

Section: Introductionmentioning

confidence: 99%

Solid-state fermentation by Aspergillus niger and Trichoderma koningii improves the quality of tea dregs for use as feed additives

Cui

Deng

et al. 2021

PLoS ONE

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This study evaluated the ability of Aspergillus niger and Trichoderma koningii to improve the quality of tea dregs (TDs) through solid-state fermentation as well as the value of the fermented tea dregs (FTDs) produced for use as bio-feed additives. After fermentation, FTDs differed in color and structure. Fermentation with A. niger and T. koningii increased the contents of crude protein, crude fiber, neutral detergent fiber, and acid detergent fiber of TDs. Compared to the unfermented group, the contents of reducing sugar, total flavonoids, total polyphenols, and theasaponins were increased in A. niger FTDs, while in T. koningii FTDs caffeine was completely degraded, the theasaponins were lower, and the contents of reducing sugar and caffeine higher. Regarding free amino acids, A. niger FTDs had the highest content of total amino acids, total essential amino acids, total non-essential amino acids, total aromatic amino acids, total branched-chain amino acids, and total non-protein amino acids, and all types of essential amino acids, followed by T. koningii FTDs and the control TDs. Fungal fermentation had similar effects on the content of various hydrolytic amino acids as those on above free amino acids, and increased the content of bitter and umami components. The composition of essential amino acids of TDs or FTDs was similar to that of the standard model, except for sulfur-containing amino acids and isoleucine. Solid-state fermentation with A. niger and T. koningii effectively improved the nutritional value of TDs, increased the contents of functional substances, and improved the flavor of TDs. This study demonstrated a feasible approach to utilize TDs that not only increases animal feed resources, but also reduces the production of resource waste and pollution.

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Effects of partial substitution of alfalfa hay with green tea waste on growth performance and in vitro methane emission of fat-tailed lambs

Cited by 21 publications

References 57 publications

Productive Performance, Carcass Traits, and Meat Quality in Finishing Lambs Supplemented with a Polyherbal Mixture

Productive Performance, Carcass Traits, and Meat Quality in Finishing Lambs Supplemented with a Polyherbal Mixture

The effect of paddy straw and concentrate containing green tea dust on performance and nutrient digestibility in feedlot lambs

Solid-state fermentation by Aspergillus niger and Trichoderma koningii improves the quality of tea dregs for use as feed additives

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